Sanitary Stainless P/T Relief Valve
Sanitary Stainless P/T Relief Valve
(OP)
Is there such a thing as a sanitary stainless pressure & temperature relief valve? I have a customer who is circulating hot DI water and asked for this. I have seen commercial sanitary pressure relief valves but not temperature (normally used in domestic hot water heaters).





RE: Sanitary Stainless P/T Relief Valve
RE: Sanitary Stainless P/T Relief Valve
RE: Sanitary Stainless P/T Relief Valve
The only time you should worry about relieving at a particular temperature [vs. pressure] is if your PRV is too small to vent at a rate sufficient for vapor. Best example are the Pressure /Temp Safety Valves on hot water heaters in the USA. They are small, but they relieve at, or just below the boiling point of water -- temperature-activated vent. So the relieving volume is much smaller -- steam occupies 1600X the volume of liquid water.
RE: Sanitary Stainless P/T Relief Valve
RE: Sanitary Stainless P/T Relief Valve